Bolt breaks 100m world record in a very easy 9.69secs

Usain Bolt sped to 100m gold in a new world record time of 9.69secs. The Jamaican flyer pulled away from the field at 50m and began celebrating over 10 m from the end. Trinidad's Richard Thompson came second in 9.89secs and Walter Dix of the USA snatched bronze with 9.91secs.

Churandy Martina of the Netherlands Antilles set a national record as crossed the line just outside the medal positions in 9.93.

Bolt's fellow countryman Asafa Powell finished in a disappointing fifth place just ahead of Michael Frater, also of Jamaica, in 9.95 as six men went under 10 seconds.

100m Olympic champion: Usain Bolt of Jamaica

World record: Bolt powers away from the rest

No problem: Bolt celebrates winning 10m from the end

Lift off: The Jamaican never looked troubled once he hit the accelerator at 50m